Uncle Silas (aka The Inheritance, 1947).

Katina Paxinou, left, and Jean Simmons, right, with 
producer Laurence Irving on the set of Uncle Silas, ca. 1947

Based on the novel of the same name by Irish writer Sheridan Le Fanu, Uncle Silas features a young heiress (Jean Simmons) whose nefarious uncle (Derrick De Marney) is prepared to take drastic measures to gain control of her fortune.